CVE-2021-32736: Prototype Pollution in think-helper
Summary
CVE-2021-32736: Prototype Pollution in think-helper. Affects think-helper versions < 1.1.3. Fixed in 1.1.3. How to fix ↓
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Background
think-helper is an npm package that provides helper functions for the ThinkJS framework. It is used to initialize or update attributes in an object. However, it is vulnerable to prototype pollution, which occurs when an attacker can modify attributes of an object's prototype. This can lead to unexpected behavior and potential security issues.
Vulnerability Detail
The vulnerability in think-helper allows an attacker to manipulate the prototype of an object, leading to potential security risks. By injecting malicious data into the object's prototype, an attacker can modify its behavior and potentially execute arbitrary code. This can result in unauthorized access, data leakage, or remote code execution.
How To Fix
Latest published version: 1.3.0 as of 23 Oct 2026
npm install think-helper@1.3.0Upgrading to it may include breaking changes; the version below is the minimum fixed release for this vulnerability.
If you need the minimum change
1.1.3
This is the first release that contains the fix.
npm install think-helper@1.1.3Tip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
There is no known workaround for this vulnerability. It is essential to upgrade to the patched version of think-helper to mitigate the risk.
Conclusion
The prototype pollution vulnerability in think-helper can have severe consequences, including unauthorized access, data leakage, or remote code execution. It is crucial to upgrade to the patched version (1.1.3 or higher) to mitigate the risk. Additionally, you can use Vulert Playground to check if your application is affected by this vulnerability. For further support, reach out to DevNack.com.
See every vulnerability recorded for think-helper →
FAQ
Prototype pollution is a vulnerability that allows an attacker to modify the prototype of an object, leading to unexpected behavior and potential security risks.
This vulnerability can result in unauthorized access, data leakage, or remote code execution, depending on how the attacker exploits the manipulated prototype.
You can use Vulert Playground (https://vulert.com/scanner) to check if your application is affected by this vulnerability. It analyzes your package-lock.json file and provides real-time alerts for open-source vulnerabilities.
Yes, the CVSS score for this vulnerability is 7.5, indicating a high severity level.
For further support on vulnerability remediation, you can contact info@devnack.com. They can provide guidance and assistance in addressing this vulnerability.
